Car-coupling.



T. L. CRAWFORD.

CAR COUPLING.

APPLICATION man FEB. 14. 1916.

.LWKWL Patented Dec. 12, 1916.

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TERRENCE L. CRAWFORI), OF GRAFTON, WEST VIRGINIA, A$SIGNQB OF ONE-HALF T0 WILLIAM T. CRAWFORD, OF 'PENSAGOLA, FLORIDA.

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Application filed February 1 1, 1916.

To all whom it may concern Be it known that I, Tnnrnnon L. Crawroiu), a citizen of the United States, residing at Grafton, in the county of Taylor and State of West Virginia, have invented certain new and useful Improvements in Car- Couplings, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to certain improvements in car couplings and it is an object of the invention to provide a coupling of this general character wherein the knuckle is pivotally mounted in applied position with out the necessity of a knuckle pin, whereby a coupler is produced possessing a maximum of strength and whereby the parting of trains is prevented which has often occurred when couplings are employed using knuckle pins.

lit is also an object of my invention to provide a novel and improved car coupler whereby the knuckle may be readily and conveniently applied in operative position.

The invention consists in the details of construction and in the combination and arragement of the several parts of my improved car coupling whereby certain important advantages are attained and the device is rendered simpler, less expensive and otherwise more convenient and advantageous for use, all as will be hereinafter more fully set forth.

The novel features of the invention will hereinafter be definitely claimed.

In order that my invention may be the better understood, I will now proceed to describe the same with reference to the accompanying drawings, wherein Figure 1 is a view in elevation illustrating a coupler constructed in accordance with an embodiment of my invention; Fig. 2 is a view partly in top plan and partly in section of my coupler as herein embodied; Fig. 8 is an elevational view, detached, of my improved knuckle; and Fig. 1 is a fragmentary view partly in plan and partly in section of a portion of my improved draw head.

As disclosed in the accompanying drawings, 1 denotes a draw head of a conven tional type having its outer end provided with the transversely disposed substantially iorizontal open slot 2, the opposed walls of which being provided with the vertically Specification of Letters Patent.

Patented Bee. 12, 1916,,

Serial No. 78,216.

alined transversely disposed open end-recesses 3, the open ends of which being disposed outwardly.

l denotes a knuckle of predetermined type including the inwardly disposed tail piece 5 and the inner or connected end of the tail piece 5 is provided on opposite faces with the vertically disposed trunnions 6 adapted to be received within the recesses 3, whereby it will be perceived that the knuckle 4: may be readilv and conveniently mounted in applied position. The trunnions 6 are of materially large diameter whereby it will be perceived that the possibility of the same being fractured is substantiallv entirely avoided.

After the knuckle 4: is properly applied to the draw head 1, the pin 7 is applied in operative position, said pin 7 being disposed through the vertically alined openings 8 produced in the head 1 and intersecting the recesses 3, said openings 8 being so positioned relative to the inner ends of the re cesses 8 as to substantially contact with the outer surface of the tail piece 5, whereby it will be perceived that the knuckle 4 is effectively maintained against displacement, although it will be readily appreciated that when it is desired to remove the knuckle 4, it is only necessary to remove the pin 7. Attention is also directed. to the fact that the outer edge of the tail piece 5 immediately adjacent the knuckle 4L proper, is curved on a radius concentric to the axes of the trunnions 6, whereby the knuckle 4i and tail piece 5 will be capable of pivotal movement about the trunnions 6 without the pin 7 offering any obstruction thereto.

In order to positively hold the pin 7 against accidental displacement, I find it of advantage to dispose therethrough a cotter pin 9 or the like which is preferably posiioned within the uppermost recess 3, whereby it will be perceived that the pin 7 is held against such upward movement as would unseat the same from within the openings 8. ft is also to be observed that the opening 8 in the lower wall of the slot 2 does not eX- tend entirely through the adjacent portion of the head 1. I also wish to particularly note that the upper and lower faces of the head 1 are conveXed in order that the head may be materially strengthened.

From the foregoing description, it is thought to be obvious that a car coupling parts herein shown lncarrying out my inventionin practice.

I claim: r

A car coupling comprising a draw head provided With a transverse slot, the opposed Walls of the slot being provided with transversely directed open recesses, a knuckle having trunnions extending from opposite faces thereof, said trunnions being inserti'bl'e Within the recesses in the opposed Walls of the slot of the head, and a pin reinovably inserted through the head and intersecting the recesses, said pin being engageable with the adjacent edge of the knuckle when in applied position, the adjacent edge of the knuckle being arranged on a curve concentric to the axes of the trunnions of the knuckle.

In testimony whereof I hereunto aflix my signature in the presence of two Witnesses.

TERRENCE L-. CRAWFORD. Witnesses W. E, LAWsON, 0. M. FORREST.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

7 Washington, ID.=G. 

